Classroom Action Research is a process for teachers to reflect on and improve their own teaching practice. It involves collecting information about what happens in the classroom through methods like teacher diaries, peer observations, and student feedback. Teachers then plan changes to address issues identified, act by implementing the changes, and observe the results. The process is cyclical, with reflection after each cycle to determine if further changes are needed or if teaching has been improved. The goal is to enhance student learning and address difficulties students may have.